Answer:
-1.5 meters per second
Explanation:
According to the question, the data provided is as follows
h (o) = 15
And, h (10) = 0
Based on the above information, the average rate of change of the height of the ball is
= -1.5 meters per second
Basically we applied the above formula so that we can determine the average rate of change of the height of the ball and the same is to be considered